1 /*
2 * Copyright (c) 2016 Etnaviv Project
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sub license,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Christian Gmeiner <christian.gmeiner@gmail.com>
25 */
26
27 #include "etnaviv_uniforms.h"
28
29 #include "etnaviv_compiler.h"
30 #include "etnaviv_context.h"
31 #include "etnaviv_util.h"
32 #include "etnaviv_emit.h"
33 #include "pipe/p_defines.h"
34 #include "util/u_math.h"
35
36 static unsigned
get_const_idx(const struct etna_context * ctx,bool frag,unsigned samp_id)37 get_const_idx(const struct etna_context *ctx, bool frag, unsigned samp_id)
38 {
39 struct etna_screen *screen = ctx->screen;
40
41 if (frag)
42 return samp_id;
43
44 return samp_id + screen->specs.vertex_sampler_offset;
45 }
46
47 static uint32_t
get_texrect_scale(const struct etna_context * ctx,bool frag,enum etna_uniform_contents contents,uint32_t data)48 get_texrect_scale(const struct etna_context *ctx, bool frag,
49 enum etna_uniform_contents contents, uint32_t data)
50 {
51 unsigned index = get_const_idx(ctx, frag, data);
52 struct pipe_sampler_view *texture = ctx->sampler_view[index];
53 uint32_t dim;
54
55 if (contents == ETNA_UNIFORM_TEXRECT_SCALE_X)
56 dim = texture->texture->width0;
57 else
58 dim = texture->texture->height0;
59
60 return fui(1.0f / dim);
61 }
62
63 void
etna_uniforms_write(const struct etna_context * ctx,const struct etna_shader_variant * sobj,struct pipe_constant_buffer * cb)64 etna_uniforms_write(const struct etna_context *ctx,
65 const struct etna_shader_variant *sobj,
66 struct pipe_constant_buffer *cb)
67 {
68 struct etna_screen *screen = ctx->screen;
69 struct etna_cmd_stream *stream = ctx->stream;
70 const struct etna_shader_uniform_info *uinfo = &sobj->uniforms;
71 bool frag = (sobj == ctx->shader.fs);
72 uint32_t base = frag ? screen->specs.ps_uniforms_offset : screen->specs.vs_uniforms_offset;
73 unsigned idx;
74
75 if (!uinfo->count)
76 return;
77
78 etna_cmd_stream_reserve(stream, align(uinfo->count + 1, 2));
79 etna_emit_load_state(stream, base >> 2, uinfo->count, 0);
80
81 for (uint32_t i = 0; i < uinfo->count; i++) {
82 uint32_t val = uinfo->data[i];
83
84 switch (uinfo->contents[i]) {
85 case ETNA_UNIFORM_CONSTANT:
86 etna_cmd_stream_emit(stream, val);
87 break;
88
89 case ETNA_UNIFORM_UNIFORM:
90 assert(cb->user_buffer && val * 4 < cb->buffer_size);
91 etna_cmd_stream_emit(stream, ((uint32_t*) cb->user_buffer)[val]);
92 break;
93
94 case ETNA_UNIFORM_TEXRECT_SCALE_X:
95 case ETNA_UNIFORM_TEXRECT_SCALE_Y:
96 etna_cmd_stream_emit(stream,
97 get_texrect_scale(ctx, frag, uinfo->contents[i], val));
98 break;
99
100 case ETNA_UNIFORM_UBO0_ADDR ... ETNA_UNIFORM_UBOMAX_ADDR:
101 idx = uinfo->contents[i] - ETNA_UNIFORM_UBO0_ADDR;
102 etna_cmd_stream_reloc(stream, &(struct etna_reloc) {
103 .bo = etna_resource(cb[idx].buffer)->bo,
104 .flags = ETNA_RELOC_READ,
105 .offset = cb[idx].buffer_offset + val,
106 });
107 break;
108
109 case ETNA_UNIFORM_UNUSED:
110 etna_cmd_stream_emit(stream, 0);
111 break;
112 }
113 }
114
115 if ((uinfo->count % 2) == 0)
116 etna_cmd_stream_emit(stream, 0);
117 }
118
119 void
etna_set_shader_uniforms_dirty_flags(struct etna_shader_variant * sobj)120 etna_set_shader_uniforms_dirty_flags(struct etna_shader_variant *sobj)
121 {
122 uint32_t dirty = 0;
123
124 for (uint32_t i = 0; i < sobj->uniforms.count; i++) {
125 switch (sobj->uniforms.contents[i]) {
126 default:
127 break;
128
129 case ETNA_UNIFORM_TEXRECT_SCALE_X:
130 case ETNA_UNIFORM_TEXRECT_SCALE_Y:
131 dirty |= ETNA_DIRTY_SAMPLER_VIEWS;
132 break;
133 }
134 }
135
136 sobj->uniforms_dirty_bits = dirty;
137 }
138